Gardaí and emergency services are currently attending the scene.
There are major delay on the M50, due to a road traffic collision.
The M50 Southbound at Junction 6 is expected to remain closed until after 6pm this evening, following a crash near Blanchardstown in Dublin earlier today.
The collision happened southbound between Junction 6 Blanchardstown and Junction 7 Lucan/Palmerstown.
Diversions are in place and motorists are warned to expect 40 minute delays on alternate routes across West Dublin, heading into the City Centre.
Dublin approaches from the M1, M2 and M3 are all affected.
Gardaí say to expect significant delays to your journey, and if possible use alternative routes.

Sharp Rise In M9 Collisions With Garda Call-Outs Up Year-On-Year
Councillor Seeks Clarity On How Often Nightclubs and Late Bars In Naas Are Inspected For Fire Risks
New Figures From CSO Reveal How Much International Protection Applicants Earn Compared To Average Worker In Ireland
Unpaid Eight-Month Work And Training Placement For Adults With Disabilities Branded "Extremely Unfair"
Department Of Education Defends Kildare SNA Cuts Amid Claims Of Reduced Need At Some Schools
Naas Nurses Threaten Escalation As Staffing Row Deepens
Driving Tests Face Disruption As RSA Testers To Strike Next Week
Jury Delivers Not Guilty By Reason Of Insanity Verdict In Ballyfin Demesne Strangling Case